Robert John Thorpe

US Patent:

49381300, Jul 3, 1990

Filed:

Jun 7, 1989

Appl. No.:

7/362618

Inventors:

Robert C. Thorpe - Castro Valley CA

International Classification:

B05C 1708

US Classification:

101126

Abstract:

A specialized clamp fits on to a screen frame in a screen printing press of the type having a frame clamping arm that pivots towards a platen during printing operations. The clamp has a passage located to receive a conforming register pin that extends from the platen to assure that the screen registers precisely at a predetermined area of the platen including in instances where the frame guide structure to the press itself may exhibit significant play. The clamp is initially engaged on the pin but not tightened enabling the screen frame to be shifted to register with the desired area of the platen. The clamp and clamping arm are then tightened to provide for repeatability of the registration. The clamp may then be used, during set up, to seat a succession of adhesive coated register pins at corresponding locations on a series of additional platens.

US Patent:

D497556, May 11, 1999

Filed:

Feb 18, 1998

Appl. No.:

D/083848

Inventors:

Robert S. Thorpe - San Francisco CA
Patti Blank - Novato CA

International Classification:

2404

US Classification:

D24195

US Patent:

D4136756, Sep 7, 1999

Filed:

Jan 22, 1999

Appl. No.:

D/099559

Inventors:

Robert S. Thorpe - San Francisco CA
Patti Blank - Novato CA

International Classification:

2404

US Classification:

D24195